EP1184042B1 - Suction pump - Google Patents

Suction pump Download PDF

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Publication number
EP1184042B1
EP1184042B1 EP00118590A EP00118590A EP1184042B1 EP 1184042 B1 EP1184042 B1 EP 1184042B1 EP 00118590 A EP00118590 A EP 00118590A EP 00118590 A EP00118590 A EP 00118590A EP 1184042 B1 EP1184042 B1 EP 1184042B1
Authority
EP
European Patent Office
Prior art keywords
pump
driving unit
valve block
characterized
suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP00118590A
Other languages
German (de)
French (fr)
Other versions
EP1184042A1 (en
Inventor
Andy Greter
Hansruedi Kuenzler
Brian Silver
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medela AG
Original Assignee
Medela AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medela AG filed Critical Medela AG
Priority to EP00118590A priority Critical patent/EP1184042B1/en
Publication of EP1184042A1 publication Critical patent/EP1184042A1/en
Application granted granted Critical
Publication of EP1184042B1 publication Critical patent/EP1184042B1/en
Application status is Not-in-force legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0023Suction drainage systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0001Containers for suction drainage, e.g. rigid containers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0066Suction pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/12General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/123General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated reservoirs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/12General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/128General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated valves

Description

  • Die vorliegende Erfindung betrifft eine Absaugpumpe für medizinische Zwecke, insbesondere Sekretabsaugpumpe, mit einem Auffangbehälter für abzusaugendes Material, einem Ventilblock zur wechselweisen Verbindung des Pumpenraumes über entsprechende Ventile mit dem Auffangbehälter zwecks Aufbau eines Vakuums in letzterem bzw. mit einer Ausblasleitung, je nach der Bewegungsrichtung eines Membranpumpenstössels, und einer Antriebseinheit des Membranpumpenstössels. The present invention relates to a suction pump for medical purposes, in particular Sekretabsaugpumpe, with a collecting container for abzusaugendes material, a valve block for the alternate connection of the pump chamber via respective valves with the collection container for the purpose of establishing a vacuum in latter or with a blow-out, depending on the direction of movement of a membrane pump plunger, and a drive unit of the diaphragm pump plunger.
  • Die heute bekannten Absaugpumpen dieser Art haben den Nachteil, dass mit Ausnahme des abnehmbaren Auffangbehälters die Reinigung der übrigen Pumpenteile aufwendig und schwierig ist, da insbesondere grosse Sorgfalt anzuwenden ist, um das Eindringen von Flüssigkeit (Waschflüssigkeit, Sekretreste) in die Antriebseinheit zu vermeiden. The currently known suction pumps of this type have the disadvantage that, with the exception of the removable collection container cleaning the remaining pump parts is complicated and difficult since particularly great care must be taken to prevent the ingress of liquid (washing liquid secretions residues) in the drive unit.
  • Eine solche Pumpe ist aus der US-A-5419687 bekannt. Such a pump is known from US Pat 5,419,687th Dort ist eine Pumpe offenbart mit einem Gehäuse, in welchem Antriebseinheit und Ventilanordnungen vorhanden sind. There is a pump is disclosed having a housing in which the drive unit and valve assemblies are provided. Ein Auffangbehälter kann lösbar daran angekoppelt werden. A collection container is releasably coupled thereto.
  • Aufgabe der vorliegenden Erfindung war die Schaffung einer Absaugpumpe, welche bei möglichst einfachem Aufbau leicht zusammenbaubar und für Reinigungszwecke wieder ohne besondere Kenntnisse auseinandernehmbar ist (keine Schlauchverbindungen). Object of the present invention was to create a suction pump, which is again disassembled without any special knowledge easily with a simple structure as possible to assemble and for cleaning purposes (no hose). Die Bedienung soll äusserst einfach sein (ein Knopf Ein/Aus) und der Auffangbehälter nach seiner Entleerung in der Waschmaschine, zB Geschirrwaschmaschine waschbar sein. The operation should be (a button on / off) and the collection container after its emptying in the washing machine, for example dishwasher be washable extremely simple. Auch die übrigen Pumpenteile, dh Ventilblock und Antriebseinheit, welche dank einer besonderen Ueberlaufkonstruktion des Auffangbehälters keiner Verschmutzung ausgesetzt sind, sollen bei Bedarf ohne Beeinträchtigung von deren Funktionalität, gereinigt werden können. The other pump components, ie valve block and drive unit which are not exposed to contamination thanks to a special overflow design of the collection container, should if necessary without affecting their functionality, can be cleaned.
  • Diese Aufgabe wird bei einer Absaugpumpe der eingangs definierten Art erfindungsgemäss durch die Merkmale des kennzeichnenden Teils von Anspruch 1 gelöst. This object is achieved with a suction pump of the type defined in the present invention by the features of the characterizing part of claim 1..
  • Vorzugsweise werden dabei die verschiedenen Pumpenteile auf einer gemeinsamen Grundplatte mittels Steck- und/oder Schnappverbindungen lösbar zusammengefügt, angeordnet. The various pump parts are assembled detachably on a common base plate by means of plug and / or snap connections preferably arranged.
  • Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels noch etwas näher erläutert. The invention will be explained in somewhat greater detail with reference to an embodiment shown in the drawing.
  • Es zeigt: It shows:
  • Fig. 1 Fig. 1
    rein schematisch eine aus drei Hauptteilen zu bildende Absaugpumpe; purely schematically a three main parts to be formed suction pump;
    Fig. 2 Fig. 2
    eine aus den drei Hauptteilen gemäss Fig. 1 zusammengesetzte Absaugpumpe; . A in accordance with the three main parts of Figure 1 assembled suction pump; und and
    Fig. 3 Fig. 3
    einen Längsschnitt durch die Absaugpumpe nach Fig. 2 in etwas vergrössertem Massstab. a longitudinal section through the suction pump of Fig. 2 in a somewhat enlarged scale.
  • Figur 1 der Zeichnung zeigt die drei Hauptteile der Absaugpumpe, nämlich das Hauptgehäuse 1 mit eingebautem Motor, Pumpenantrieb und gegebenenfalls einem Akku (diese Einbauteile sind in Fig. 3 dargestellt), welches auf eine Bodenplatte 2 angesteckt ist, wobei am Hauptgehäuse noch die Membran 3 eines Membranpumpenstössels (s. Fig. 3), der Hauptschalter 4 (Ein/Aus) sowie ein Stromanschluss 5 gezeigt sind, ferner ein Ventilblock 6 mit Ueberlaufkammer (Fig. 3) und Vakuumeinstellknopf 7 (zB zwei Stellungen) und schliesslich ein wiederverwendbarer Auffangbehälter 8 mit aufgesetztem Deckel 9. 1 of the drawing shows the three main parts of the suction pump, namely, the main body 1 incorporating a motor pump drive and optionally an accumulator (these built-in parts are shown in Fig. 3) which is plugged on a bottom plate 2, wherein the main body nor the diaphragm 3 a membrane pump plunger (s. Fig. 3), the main switch 4 (on / off) and a power terminal 5 are shown further comprises a valve block 6 with overflow chamber (Fig. 3) and Vakuumeinstellknopf 7 (for example, two positions) and finally a reusable collecting container 8 with the lid. 9
  • Die in Figur 1 gezeigten Hauptteile der Absaugpumpe lassen sich leicht zusammenstecken (Steck- und Schnappverbindungen) und selbstverständlich ebenso leicht wieder auseinandernehmen (zu Reinigungszwecken). The main parts of the suction pump shown in Figure 1 can be easily plugged together (plug-in and snap-on connections) and of course just as easily take apart again (for cleaning purposes). Der Ventilblock 6 kommt dabei direkt zwischen das Hauptgehäuse 1 und den auswechselbaren Auffangbehälter 8 zu liegen, wie Figur 2 zeigt. The valve block 6 is entered into directly between the main body 1 and the interchangeable collecting container 8 to lie, as Figure 2 shows. Die Hauptteile sind vorzugsweise auf die Bodenplatte 2 aufgesteckt. The main parts preferably are placed on the bottom plate. 2
  • Das erfindungsgemässe Aufbaukonzept ist am besten aus dem Längsschnitt gemäss Figur 3 ersichtlich: The novel design concept is best seen in the longitudinal section according to Figure 3:
  • Im Hauptgehäuse 1 ist ein Elektromotor 10 (zB ein 12V-Gleichstrommotor) an einer Platte 11 angeflanscht und dient dem Antrieb des Exzenters 12 (mit zusätzlicher Unwucht 13). In the main body 1, an electric motor 10 (for example, a 12V DC motor) is flange-mounted on a plate 11 and serves to drive the cam 12 (with additional unbalance 13). Der Exzenter 12 dient dem Antrieb des Pumpenpleuels 14, welcher mit einer Membrane 15 (zB umspritzte Membrane) versehen ist und im Betrieb der Erzeugung eines gewünschten Vakuums dient. The eccentric 12 serves to drive the Pumpenpleuels 14, which with a membrane 15 (for example, molded membrane) is provided and is used in the operation of generating a desired vacuum. Ebenfalls im Hauptgehäuse 1, welches auf eine Bodenplatte 2 aufgesteckt ist, ist ein Akku 16 untergebracht. Also in the main body 1, which is plugged onto a base plate 2, a battery is housed 16th Eine Stromversorgung von aussen erfolgt über die Anschlussbuchse 17 (12V-Gleichstrom zur Speisung des Akku 16 oder zur direkten Speisung des Motors 10). A power supply from the outside via the connection socket 17 (12V DC to power the battery 16 or for direct power of the motor 10). Auf der Oberseite des Gehäuses 1 ist schliesslich ein Druckknopfschalter 18 (Ein/Aus) angeordnet. On top of the housing 1, a push-button switch is finally disposed 18 (on / off).
  • Ebenfalls auf die Grundplatte 2 aufgesteckt befindet sich auf der linken Seite der austauschbare, wiederverwendbare Auffangbehälter 8 für abzusaugendes Material (zB Sekret) mit Behälterdeckel 9. Das durch im Behälter 8 erzeugtes Vakuum abzusaugende Material tritt über eine am Stutzen 19 anbringbare Schlauchleitung (nicht dargestellt) in den Behälter 8 ein. Also attached to the base plate 2 of the interchangeable, reusable collecting container is located on the left side 8 for abzusaugendes material (eg, secretion) with container lid 9. The suctioned through generated in the container 8 vacuo material occurs (not shown) via a mountable on the connecting piece 19 tubing into the container 8 a.
  • Zwischen Auffangbehälter 8 und Hauptgehäuse 1 ist als dritter separater Hauptteil ein Ventilblock 6 eingesetzt, wobei dieser durch geeignete Verbindungen mit dem Behälter 8 und dem Gehäuse 1 lösbar gekuppelt ist. Between collector 8 and the main body 1, a valve block 6 is used as a third separate main section, the latter being detachably coupled by means of suitable connections to the container 8 and the housing. 1 Da zwischen Ventilblock 6 und dem im Hauptgehäuse 1 untergebrachten Membranpumpenstössel 14 mit an seinem vorderen Ende angeordneter Membran 15 der eigentliche Pumpenraum 20 liegt, ist dieser Raum mit einer Einrichtung zur Einstellung des gewünschten Vakuums (Vakuumeinstellknopf 21 mit zB zwei unterschiedlichen Stellungen) verbunden. There lies between valve block 6 and accommodated in the main body 1 diaphragm pump plunger 14 is arranged at its front end membrane 15, the actual pump chamber 20, this space is connected with a device for adjustment of the desired vacuum (Vakuumeinstellknopf 21 with, for example, two different positions).
  • In einer Wand 22 des Ventilblocks 6 sind selbsttätig wirkende Ventile 23 bzw. 24 angeordnet: Bei sich in Richtung R bewegendem Pleuel 14 bzw. Membrane 15 entsteht Unterdruck und Luft Wird aus dem Behälter 8 über das sich öffnende Ventil 23 gesaugt (zwecks Erzeugung des Vakuums im Auffangbehälter). In a wall 22 of the valve block 6 self-acting valves are arranged 23 and 24: If in the direction R moving connecting rod 14 and membrane 15 creates negative pressure and air is removed from the tank 8 is sucked via the opening valve 23 (in order to create the vacuum in the collection vessel). Bei der Stossbewegung des Pleuels 14 bzw. der Membran 15 in Richtung L schliesst das Ventil 23 und die in den Pumpenraum 20 angesaugte Luft wird über das sich öffnende Ventil 24 ausgestossen, dies in einen mittels eines Deckels 25 geschlossenen Raum 26, welcher über freie Kanäle zwischen den miteinander gekuppelten Pumpenteilen mit der Umgebung verbunden ist (Aus). When the pushing movement of the connecting rod 14 and the diaphragm 15 in the direction L, the valve 23 and the sucked into the pump chamber 20 air closes is ejected via the opening valve 24, shown in a closed by a lid 25 space 26 which on free channels connected between the coupled together with the pump parts environment (Off).
  • Die Verbindung zwischen Auffangbehälter 8 und Ventilblock 6 erfolgt über einen hochgelegenen Stutzen 27, welcher notfalls auch einen Ueberlauf für den Behälter 8 bildet. The connection between the collecting vessel 8 and the valve block 6 via a high-level piece 27 which, if necessary, also forms an overflow for the tank. 8 Dank der besonderen Konstruktion würde eventuell in den Ventilblock 6 eindringende Flüssigkeit die Antriebseinheit der Pumpe nicht beeinträchtigen. The special design may 6 penetrating liquid would not affect the drive unit of the pump to the valve block.
  • Die einzelnen Pumpenteile 1, 6 und 8 können auf einfachste Weise zusammengebaut und demontiert werden, was insbesondere deren Reinigung vereinfacht und problemlos gestaltet (Auffangbehälter 8 und Ventilblock können in der Geschirrwaschmaschine gereinigt werden). The individual pump parts 1, 6 and 8 can be assembled in a very simple manner and dismantled, which in particular simplifies its cleaning and easily designed (collecting vessel 8 and the valve block can be cleaned in a dish washing machine).

Claims (7)

  1. Suction pump for medical applications, particularly pump for sucking off secretions, with a collection container (8) for material to be sucked off and a driving unit (1, 10-18) of the pump plunger (14),
    characterized in that
    a valve block (6) with a wall having valves (23, 24) for the alternate connection of the pump chamber (20) to respective valves (23, 24) with the collection container (8) for providing a vacuum in latter or with a blowing off circuit respectively, is arranged depending on the direction of movement of a pump plunge (14),
    whereby a collection container (8), valve block (6) and driving unit (1, 10-18) are designed as separate pump parts which for the operation of the pump can be releasable coupled to each other,
    whereby the valve block (6) comes to lie directly between collecting container and driving unit (1, 10-18),
    whereby, the pump chamber (20) lies between valve block (6) and driving unit (1, 10-18) and is defined by the wall of the valve block (6) with the valves (23, 24) and a wall of the driving unit (1, 10-18) or a membrane (15) respectively, and
    whereby the pump plunger (14) arranged in the driving unit (1, 10-18) cooperates at its front end with the membrane (15), which is arranged sealed against the inside of the driving unit (1, 10-18), is however exposed towards the environment to the pump chamber (20).
  2. Suction pump according claim 1, characterized in that the releasable joined pump parts (1, 10-18; 6; 8) are arranged on a common plate (2).
  3. Suction pump according claim 1 or 2, characterized in that the releasable connection between the pump parts (1, 10-18; 6; 8) proceeds through plug in and/or snap on connections.
  4. Suction pump according to one of the claims 1 to 3, characterized in that the valve block (6) communicates in the assembled state with two compartments separated from each other, namely a first compartment, which on the one hand can be connected to the collecting container (8) and on the other hand can be connected through a suction valve (23) to the pump chamber (20), as well as a second compartment (26), which connects the pump chamber (20) through an outlet valve (24) to a blowing off circuit.
  5. Suction pump according to any of the preceding claims, characterized in that the pump parts (1, 10-18; 6; 8) are easily mountable and for cleaning purposes easily detachable again, without outstanding knowledge, whereby no hose connections are present.
  6. Suction pump according to any of the preceding claims, characterized in that the driving unit (1, 10-18) has a main housing (1), a pump drive (10-13) and optionally an accumulator (16), whereby the main housing (1) is mounted on a support plate (2).
  7. Suction pump according to any one of the preceding claims, characterized in that the valve block (6) has a vacuum adjusting button (7, 21), which is connected to the pump chamber (20) for adjustment of the desired vacuum.
EP00118590A 2000-08-28 2000-08-28 Suction pump Not-in-force EP1184042B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00118590A EP1184042B1 (en) 2000-08-28 2000-08-28 Suction pump

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
EP00118590A EP1184042B1 (en) 2000-08-28 2000-08-28 Suction pump
DE50013232A DE50013232D1 (en) 2000-08-28 2000-08-28 suction Pump
AT00118590T AT333908T (en) 2000-08-28 2000-08-28 suction Pump
ES00118590T ES2267437T3 (en) 2000-08-28 2000-08-28 A suction pump.
AU2001281653A AU2001281653B9 (en) 2000-08-28 2001-08-28 Suction pump
JP2002522961A JP4286534B2 (en) 2000-08-28 2001-08-28 Suction pump
AU8165301A AU8165301A (en) 2000-08-28 2001-08-28 Suction pump
PCT/CH2001/000524 WO2002017992A1 (en) 2000-08-28 2001-08-28 Suction pump
CA002420541A CA2420541C (en) 2000-08-28 2001-08-28 Suction pump
US10/362,981 US7160273B2 (en) 2000-08-28 2001-08-28 Suction pump
NO20030871A NO20030871D0 (en) 2000-08-28 2003-02-25 Suction Pump

Publications (2)

Publication Number Publication Date
EP1184042A1 EP1184042A1 (en) 2002-03-06
EP1184042B1 true EP1184042B1 (en) 2006-07-26

Family

ID=8169668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118590A Not-in-force EP1184042B1 (en) 2000-08-28 2000-08-28 Suction pump

Country Status (10)

Country Link
US (1) US7160273B2 (en)
EP (1) EP1184042B1 (en)
JP (1) JP4286534B2 (en)
AT (1) AT333908T (en)
AU (2) AU8165301A (en)
CA (1) CA2420541C (en)
DE (1) DE50013232D1 (en)
ES (1) ES2267437T3 (en)
NO (1) NO20030871D0 (en)
WO (1) WO2002017992A1 (en)

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Also Published As

Publication number Publication date
WO2002017992A1 (en) 2002-03-07
AU2001281653B2 (en) 2005-06-23
NO20030871L (en) 2003-02-25
ES2267437T3 (en) 2007-03-16
US7160273B2 (en) 2007-01-09
AU8165301A (en) 2002-03-13
AT333908T (en) 2006-08-15
US20040024360A1 (en) 2004-02-05
NO20030871D0 (en) 2003-02-25
JP4286534B2 (en) 2009-07-01
CA2420541A1 (en) 2003-02-25
EP1184042A1 (en) 2002-03-06
DE50013232D1 (en) 2006-09-07
CA2420541C (en) 2009-01-20
JP2004507324A (en) 2004-03-11
AU2001281653B9 (en) 2005-07-07

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